WO2025108065A1 - Communication method and apparatus - Google Patents

Abstract

A communication method and apparatus, which are applied in the fields of Internet of vehicles, ambient Internet of things, Internet of things, etc. The method comprises: receiving first indication information from a first terminal device, and receiving second indication information from a second terminal device, wherein the first indication information indicates a first resource located in a first time slot, and the second indication information indicates a second resource located in a second time slot; sending third indication information to the first terminal device, wherein the third indication information is used for instructing the adjustment of the first resource to a third resource, and the third resource is located in the second time slot; and receiving a first reference signal at the third resource, and receiving a second reference signal at the second resource. By means of the method, when it is determined that reference signals in different resources are to be received in different time slots, resources in different time slots are adjusted to the same time slot, such that the reference signals in different resources can be received in the same time slot, thereby improving the reception efficiency, and reducing the transmission time delay of the reference signals.

Description

A communication method and device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on November 20, 2023, with application number 202311554170.X and invention name "A Communication Method and Device", the entire contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of communication technology, and in particular to a communication method and device.

Background Art

In the sidelink, terminal devices can reserve transmission resources in a self-selected resource mode. If a terminal device communicates with multiple terminal devices at the same time, since each of the multiple terminal devices independently reserves resources in the resource pool, the locations of the resources reserved by the multiple terminal devices are relatively random, and the locations of the resources are relatively scattered, causing the receiving device to frequently switch between multiple resources, resulting in low communication efficiency and large latency.

Summary of the invention

The present application provides a communication method and device for improving communication efficiency.

In the first aspect, the present application provides a communication method, which is applicable to scenarios such as the Internet of Vehicles. The execution subject of the method is a terminal device or a module or chip in the terminal device, and the terminal device is used as an example for description. In the method, a first indication message is received from a first terminal device, and a second indication message is received from a second terminal device; the first indication message indicates a first resource, the second indication message indicates a second resource, the first resource is located in a first time slot, and the second resource is located in a second time slot; a third indication message is sent to the first terminal device, and the third indication message is used to indicate that the first resource is adjusted to a third resource, and the third resource is located in the second time slot; a first reference signal is received from the first terminal device in the third resource, and a second reference signal is received from the second terminal device in the second resource.

Through the method provided in the present application, when it is determined that reference signals in different resources are received in different time slots, the resources in different time slots are adjusted to the same time slot, so that reference signals in different resources can be received in the same time slot, which can improve the receiving efficiency, reduce the transmission delay of the reference signal, and improve the communication efficiency.

In a possible implementation, before sending the third indication information to the first terminal device, the method further includes: determining to use the same receiving beam to receive the reference signal on the first resource and the second resource.

Through this method, the fourth terminal device can use the same receiving beam in the second time slot to receive multiple reference signals in multiple resources, thereby improving beam scanning efficiency and reducing beam scanning delay.

In a possible implementation, the third indication information includes at least one of the following: time domain information of the third resource; frequency domain information of the third resource; time domain information of the first resource; and frequency domain information of the first resource.

In one possible implementation, the time domain information of the third resource indicates the time slot offset value between the third resource and the first resource; or, the time domain information of the third resource indicates the time slot offset value between the third resource and the first physical resource, and the first physical resource is used to carry the first indication information; or, the time domain information of the third resource indicates the frame index of the third resource, and the time slot index of the third resource.

Through this method, the time slot offset value of the adjusted third resource relative to the first resource or the resource where the first indication information is located can enable the first terminal device to accurately determine the time domain position of the third resource and reduce the overhead of the indication information.

In a possible implementation, when the time domain information of the third resource indicates a time slot offset value between the third resource and the first resource, the time domain information of the third resource further indicates a position sequence of the third resource and the first resource in the time domain.

Through this method, by indicating the position sequence of the third resource and the first resource in the time domain, the time domain position of the third resource can be accurately determined according to the time slot offset value.

In one possible implementation, the method also includes: receiving fourth indication information from the first terminal device, receiving fifth indication information from the third terminal device; the fourth indication information indicates a fourth resource, the fifth indication information indicates a fifth resource, the fourth resource is located in the third time slot, and the fifth resource is located in the fourth time slot; wherein the third indication information also indicates adjusting the fourth resource to a sixth resource; the sixth resource is located in the fourth time slot.

In a possible implementation manner, the method further includes: determining to use the same receiving beam to receive the reference signal on the fourth resource and the fifth resource.

In a possible implementation, the third indication information further includes at least one of the following: time domain information of a fourth resource; frequency domain information of a fourth resource; time domain information of a sixth resource; and frequency domain information of a sixth resource.

In one possible implementation, when the third indication information includes time domain information of a third resource and time domain information of a sixth resource, the position order of the time domain information of the third resource and the time domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain.

Through this method, the position order of the time domain information of the resources is implicitly indicated to indicate the position order of the multiple resources to be adjusted, which can reduce the overhead of the indication information and improve the resource utilization.

In one possible implementation, when the third indication information includes frequency domain information of a third resource and frequency domain information of a sixth resource, the position order of the frequency domain information of the third resource and the frequency domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain.

Through this method, the position order of the multiple resources to be adjusted in the time domain is implicitly indicated through the position order of the frequency domain information of the resources, which can reduce the overhead of the indication information and improve the resource utilization.

In a possible implementation, the method further includes: receiving sixth indication information or seventh indication information from the first terminal device, the sixth indication information indicating acceptance of adjusting the first resource to the third resource, and the seventh indication information indicating refusal to adjust the first resource to the third resource.

Through this method, the fourth terminal device can determine whether the first terminal device accepts the adjusted resources, ensuring that the sending end and the receiving end have a consistent understanding of the resource adjustment, thereby improving communication efficiency.

In a possible implementation manner, the method further includes: receiving indication information from a plurality of terminal devices; the first terminal device and the second terminal device are two terminal devices among the plurality of terminal devices.

In the second aspect, the present application provides a communication method, which is applicable to scenarios such as the Internet of Vehicles. The execution subject of the method is a terminal device or a module or chip in the terminal device, and the terminal device is used as an example for description. In the method, a first indication message is sent; the first indication message indicates a first resource, and the first resource is located in a first time slot; a third indication message is received from a fourth terminal device, and the third indication message indicates that the first resource is adjusted to a third resource, and the third resource is located in a second time slot; and a first reference signal is sent in the third resource.

In a possible implementation, the method further includes: sending sixth indication information or seventh indication information to a fourth terminal device, the sixth indication information indicating acceptance of adjusting the first resource to a third resource, and the seventh indication information indicating refusal to adjust the first resource to a third resource.

In a possible implementation, the third indication information includes at least one of the following: time domain information of the third resource; frequency domain information of the third resource; time domain information of the first resource; and frequency domain information of the first resource.

In one possible implementation, the time domain information of the third resource indicates the time slot offset value between the third resource and the first resource; or, the time domain information of the third resource indicates the time slot offset value between the third resource and the first physical resource, and the first physical resource is used to carry the first indication information; or, the time domain information of the third resource indicates the frame index of the third resource, and the time slot index of the third resource.

In a possible implementation, when the time domain information of the third resource indicates a time slot offset value between the third resource and the first resource, the time domain information of the third resource further indicates a position sequence of the third resource and the first resource in the time domain.

In one possible implementation, the method further includes: sending fourth indication information; the fourth indication information indicates a fourth resource, and the fourth resource is located in a third time slot; wherein the third indication information also indicates adjusting the fourth resource to a sixth resource; and the sixth resource is located in the fourth time slot.

In a possible implementation, the third indication information further includes at least one of the following: time domain information of a fourth resource; frequency domain information of a fourth resource; time domain information of a sixth resource; and frequency domain information of a sixth resource.

In one possible implementation, when the third indication information includes time domain information of a third resource and time domain information of a sixth resource, the position order of the time domain information of the third resource and the time domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain; and/or, when the third indication information includes frequency domain information of the third resource and frequency domain information of the sixth resource, the position order of the frequency domain information of the third resource and the frequency domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain.

In a third aspect, the present application further provides a communication device, which can implement any of the methods provided in any of the first to second aspects above. The communication device can be implemented by hardware, or by hardware executing corresponding software implementation. The hardware or software includes one or more units or modules corresponding to the above functions.

In a possible implementation, the communication device includes: a processor, the processor is configured to support the communication device to perform the corresponding functions of the network device or terminal device in the above method. The communication device may also include a memory, which may be coupled to the processor and stores the necessary program instructions and data of the communication device. Optionally, the communication device also includes an interface circuit, which is used to support Communication between the communication device and devices such as terminal equipment.

In a possible implementation, the communication device includes corresponding functional modules, which are respectively used to implement the steps in the above method. The functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

In a possible implementation, the structure of the communication device includes a processing unit and a communication unit, which can perform corresponding functions in the above method examples. For details, please refer to the description of the method provided in any one of the first aspect to the second aspect, which will not be repeated here.

In a fourth aspect, a communication device is provided, including a processor and an interface circuit, the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, the processor implements the functional modules of the method in any possible implementation of any of the first to second aspects through a logic circuit or by executing a computer program or instruction. Optionally, the communication device also includes a memory, the memory being used to store the computer program or instruction.

In a fifth aspect, a computer program product storing instructions is provided, and when a computer reads and executes the computer program product, the method in any possible implementation of any one of the first to second aspects is implemented.

In a sixth aspect, a circuit is provided, the circuit being used to execute the method in any possible implementation of any one of the first to second aspects, the circuit may include a chip circuit. Optionally, the circuit may also be coupled to a memory.

In a seventh aspect, a chip is provided, the chip comprising a processor, and when the processor executes a computer program or instruction, the method in any possible implementation of any one of the first to second aspects is implemented. Optionally, the chip may also include a memory, and the chip may be composed of a chip, or may include a chip and other discrete devices.

In an eighth aspect, a communication device is provided, comprising a processor, which implements the method in any possible implementation of any one of the first to second aspects through a logic circuit or by executing a computer program or instruction.

In a ninth aspect, a communication device is provided, comprising a unit or module for executing the method in any possible implementation of any one of the first to second aspects above.

In the tenth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed by a processor, the method in any possible implementation manner of any one of the first to second aspects is implemented.

In an eleventh aspect, an embodiment of the present application further provides a communication system. The communication system comprises: a fourth terminal device for implementing the method in the aforementioned first aspect and any possible implementation of the first aspect; and a first terminal device for implementing the method in the aforementioned second aspect and any possible implementation of the second aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a network device architecture provided in an embodiment of the present application;

FIG2 is a schematic diagram of a resource selection window provided in an embodiment of the present application;

FIG3 is a schematic diagram of a PSFCH cycle provided in an embodiment of the present application;

FIG4 is a schematic diagram of a beam management process provided in an embodiment of the present application;

FIG5 is a schematic diagram of a network architecture applicable to an embodiment of the present application;

FIG6 is a flow chart of a communication method provided in an embodiment of the present application;

FIG7 is a schematic diagram of indicating resources in a resource pool provided by an embodiment of the present application;

FIG8 is a schematic diagram of resource adjustment provided in an embodiment of the present application;

FIG9 is a schematic diagram of resource adjustment provided in an embodiment of the present application;

FIG10 is a schematic diagram of resource adjustment provided in an embodiment of the present application;

FIG11 is a schematic diagram of resource adjustment provided in an embodiment of the present application;

FIG12 is a schematic diagram of resource adjustment provided in an embodiment of the present application;

FIG13 is a schematic diagram of a PSFCH resource provided in an embodiment of the present application;

FIG14 is a schematic diagram of resource adjustment provided in an embodiment of the present application;

FIG15 is a schematic diagram of resource adjustment provided in an embodiment of the present application;

FIG16 is a schematic diagram of the structure of a third indication information provided in an embodiment of the present application;

FIG17 is a schematic diagram of the structure of a third indication information provided in an embodiment of the present application;

FIG18 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

FIG19 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

FIG20 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

In the embodiments of the present application, the number of nouns, unless otherwise specified, means "singular noun or plural noun", that is, "one or more". "At least one" means one or more, and "plural" means two or more. "And/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character "/" generally indicates that the previous and next associated objects are in an "or" relationship. For example, A/B means: A or B. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.

The ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority or importance of multiple objects. In addition, the numbering of the steps in the various embodiments introduced in the present application is only for distinguishing different steps, and is not used to limit the order between the steps.

The method provided in the embodiment of the present application can be applied to long term evolution (LTE), 5G new radio (NR) system, or to various communication systems in the future, for example, the sixth generation (6G) communication system. The method provided in the embodiment of the present application can also be applied to vehicle to everything (V2X) communication, vehicle networking, automatic driving, assisted driving and other fields.

The method and device provided in the embodiments of the present application are based on the same or similar technical concepts. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

Below, some terms in the embodiments of the present application are first explained to facilitate understanding by those skilled in the art.

The communication device involved in the present application may be a device or equipment or chip or module that can communicate with other devices wirelessly and/or wired, including but not limited to network devices, terminal devices and other devices or equipment.

In the embodiments of the present application, the network device may be a device in a wireless network, and the network device may also be referred to as a network device or a wireless access network device or an access network device. For example, the network device may be a radio access network (RAN) node that connects a terminal device to a wireless network, and may also be referred to as an access network device. The network equipment includes, but is not limited to: base station, evolved NodeB (eNodeB), transmission reception point (TRP), next generation NodeB (gNB) in the fifth generation (5G) mobile communication system, access network equipment in the open radio access network (O-RAN), next generation base station in the sixth generation (6G) mobile communication system, base station in the future mobile communication system or access node in the wireless fidelity (WiFi) system, etc.; or it may be a module or unit that completes part of the functions of the base station, for example, it may be a central unit (CU), a distributed unit (DU), a central unit control plane (CU-CP) module, or a central unit user plane (CU-UP) module. The access network equipment may be a macro base station, a micro base station or an indoor station, a relay node or a donor node, etc. This application does not limit the specific technology and specific device form used by the network device.

As shown in FIG. 1 , in some implementations, the network device may include a centralized unit (CU) and a distributed unit (DU). The RAN device including the CU node and the DU node splits the protocol layer of the gNB in the NR system, places the functions of some protocol layers in the CU for centralized control, and distributes the functions of the remaining part or all of the protocol layers in the DU, which is centrally controlled by the CU. Furthermore, the CU can also be divided into a control plane (CU-CP) and a user plane (CU-UP). Among them, the CU-CP is responsible for the control plane function, mainly including the radio resource control (RRC) and the packet data convergence protocol (PDCP) (i.e., PDCP-C) corresponding to the control plane. PDCP-C is mainly responsible for the encryption and decryption, integrity protection, data transmission, etc. of the control plane data. CU-UP is responsible for the user plane function, mainly including the service data adaptation protocol (SDAP) and the PDCP (i.e., PDCP-U) corresponding to the user plane. Among them, SDAP is mainly responsible for processing the data of the core network and mapping the flow to the bearer. PDCP-U is mainly responsible for data plane encryption and decryption, integrity protection, header compression, sequence number maintenance, data transmission, etc. CU-CP and CU-UP are connected through the E1 interface. CU-CP represents the gNB connected to the core network through the NG interface, and connected to the DU through the F1 interface control plane (i.e. F1-C). CU-UP is connected to the DU through the F1 interface user plane (i.e. F1-U). Of course, there is another possible The implementation is that PDCP-C is also in CU-UP.

It can be understood that in different systems, CU (including CU-CP or CU-UP) or DU may also have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (O-RAN) system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, and CU-UP may also be called O-CU-UP. For the convenience of description, CU, CU-CP, CU-UP and DU are described as examples in this application. The network device may also include an active antenna unit (AAU). CU implements some functions of gNB, and DU implements some functions of gNB. For example, CU is responsible for processing non-real-time protocols and services and implementing the functions of the RRC layer. DU is responsible for processing physical layer protocols and real-time services and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. In some deployments, the CU may also be divided into a centralized unit control plane (CU-CP) node and a centralized unit user plane (CU-UP) node, wherein the CU-CP is responsible for control plane functions and the CU-UP is responsible for user plane functions.

The terminal device involved in the embodiments of the present application may be a wireless terminal device capable of receiving network device scheduling and indication information. The terminal device may be referred to as a terminal device, and may also be referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device may be a device including a wireless communication function (providing voice/data connectivity to the user). For example, a handheld device with a wireless connection function, or a vehicle-mounted device, a vehicle-mounted module, etc. At present, some examples of terminal devices are: mobile phones, tablet computers, laptop computers, PDAs, mobile Internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in the Internet of Vehicles, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, and wireless terminals in transportation safety. The terminal device may include a wireless terminal in a smart city, a wireless terminal in a smart safety, a wireless terminal in a smart city, or a wireless terminal in a smart home, a device-to-device (D2D) communication terminal device, a vehicle to everything (V2X) communication terminal device, an intelligent vehicle, a vehicle-machine system (or a vehicle-mounted transmission unit) (telematics box, T-box), a machine-to-machine/machine-type communications (M2M/MTC) terminal device, an Internet of Things (IoT) terminal device, etc. For example, the terminal device may be an on-board device, a vehicle-wide device, an on-board module, a vehicle, an on-board unit (OBU), a roadside unit (RSU), a T-box, a chip or a system on chip (SOC), etc., and the above chip or SOC may be installed in a vehicle, an OBU, an RSU, or a T-box. Wireless terminals in industrial control can be cameras, robots, etc. Wireless terminals in smart homes can be TVs, air conditioners, sweepers, speakers, set-top boxes, etc. Terminal devices can also be V2X devices, such as smart cars (or intelligent cars), digital cars, unmanned cars (or driverless cars or pilotless cars or automobiles), self-driving cars or autonomous cars, pure electric vehicles (or battery EVs), hybrid electric vehicles (HEVs), range extended EVs (REEVs), plug-in hybrid electric vehicles (PHEVs), new energy vehicles (new energy vehicles), and roadside units (road site units, RSUs). Terminal devices can also be devices in device-to-device (D2D) communications, such as electric meters and water meters. In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network that interconnects people and machines and things.

In this application, predefined content usually refers to information that is defined by standards and does not require other equipment configuration, and is recorded/written in advance in the hardware and/or software of the terminal device itself, or can be understood as information that cannot be changed by the network device or other terminal devices. Preconfigured content usually refers to information that is recorded/written in advance in the hardware and/or software of the terminal device itself, which is determined by the manufacturer and can be changed by software or hardware.

(Pre) configuration can be divided into network device (pre) configuration and terminal device (pre) configuration. If it is a network device (pre) configuration, it can be (pre) configured through the system information block (SIB) or RRC signaling; if it is a terminal device (pre) configuration, it can be (pre) configured according to PC5-RRC signaling.

The present application can be applied to Cellular Vehicle-To-Everything (C-V2X), which is a V2X communication technology developed based on cellular systems. C-V2X utilizes and enhances current cellular network functions and elements to achieve low-latency and high-reliability communications between various nodes in vehicle networks. C-V2X can include vehicle-to-vehicle communication (Vehicle to Vehicle, V2V), vehicle-to-pedestrian communication (Vehicle to Pedestrian, V2P), vehicle-to-infrastructure communication (Vehicle to Infrastructure, V2I), and vehicle-to-network communication (Vehicle to Network, V2N). With the evolution of cellular systems from LTE to 5G, C-V2X has evolved from LTE-V2X to NR-V2X (New Radio V2X, NR-V2X). The vehicle-to-vehicle communication technology supported by V2X can be extended to D2D communications under any system.

In the present application, network devices and terminal devices, and terminal devices and terminal devices can communicate through authorized spectrum, unauthorized spectrum, or both; can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz at the same time. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

The terminal device may obtain SL resource pool configuration information and/or SL bandwidth part (BWP) configuration information by receiving a system information block (SIB) of a network device, a cell-specific radio resource control (RRC) signaling, or a user-specific RRC signaling. The terminal device may also use pre-configured SL resource pool configuration information or SL BWP configuration information. The SL BWP configuration information may include SL resource pool information for configuring the number of resource pools included in the BWP. The SL BWP configuration information may include SL bandwidth information for indicating the bandwidth size for SL communication, for example, indicating that the SL bandwidth is 20 megahertz (MHz). Among them, the resource pool may also be referred to as an SL resource pool.

In V2X SL, the terminal device can use the self-selected resource mode (also called mode 2) to determine the transmission resources. If the self-selected resource mode is used to select the transmission resources, the terminal device can select the transmission resources for communication in the resource selection window within the resource pool according to the results of perception within its own perception window. The specific resource selection process is not limited in this application and will not be elaborated here.

Exemplarily, the terminal device triggers mode 2 resource selection in time slot n, performs sensing and resource selection to determine the time-frequency resource for sending the first reference signal, as shown in FIG2, and the specific steps are:

Step 1: The terminal device determines the resource selection window [n+T ₁ , n+T ₂ ].

Each candidate resource R _x,y in the resource selection window is represented by a time slot in the time domain and L _subCH consecutive subchannels in the frequency domain. A time slot includes multiple orthogonal frequency division multiplexing (OFDM) symbols, for example, 14 OFDM symbols; a subchannel includes multiple physical resource blocks (RBs).

in Determined by Table 1, it can represent the delay of the transmitting terminal device processing resource selection and reference signal transmission; μ _SL is the configured subcarrier spacing, which can be the subcarrier spacing of the SL resource pool; the value of T ₁ is not limited, T ₁ is an integer greater than 0, T ₁ can be determined by the terminal device or preset or preconfigured or configured by the network device, which can be based on implementation. If T _2min (the value of this parameter is configured by the high-level layer) is less than the remaining packet delay budget (packet delay budget, PDB), then T _2min ≤T ₂ ≤PDB (packet delay budget), the value of T ₂ is not limited, T ₂ is an integer greater than T ₁ , T ₂ can be determined by the terminal device or preset or preconfigured or configured by the network device, which can be based on implementation; if T _2min is greater than or equal to the remaining PDB, otherwise T ₂ is equal to the remaining PDB. L _subCH can be determined by the terminal device or preset or preconfigured or configured by the network device.

For example, as shown in Table 1, One-to-one correspondence with μ _SL :

Table 1

Step 2: The terminal device determines the sensing window. For example, the sensing window is expressed as

In this application, It is the time delay of the terminal device to process the perception result. Specifically, It can be the number of time slots required by the terminal device to process the perception result. _{T 0} is a positive integer.

Optional, And/or T ₀ is related to the subcarrier spacing μ _SL . For example, as shown in Table 2, One-to-one correspondence with μ _SL :

Table 2

It should be understood that there is no strict execution timing restriction between step 1 and step 2.

Step 3: The terminal device determines a reference signal received power (RSRP) threshold value Th(p _i ,p _j ).

The RSRP threshold value is related to the priority prio _TX of the reference signal to be sent by the terminal device, and is also related to the priority prio _RX indicated by the received sidelink control information (SCI). The RSRP threshold value can specifically be the RSRP threshold value corresponding to the prio _RX + (prio _TX -1)*8th index in the RSRP threshold value set configured by the resource pool. The unit of the RSRP threshold value can be decibel (dB).

Step 4: The terminal device initializes the available resource set _SA . The initialized _SA may be a set of all time-frequency resource units in the resource selection window.

Step 5: When any of the following conditions is met, exclude the corresponding resources from _SA :

a) The time slots of all periodic resource reservations configured in the resource pool corresponding to the time slots not sensed by the terminal device in the sensing window. For example, the time slot is the time slot when the terminal device is in the sending state. Due to the limitation of the half-duplex transceiver, when the terminal device is in the sending state, it cannot receive, so it cannot sense the sending time slot.

Step 5a: If the time-frequency resources excluded from _SA are less than X% of the total time-frequency resources in the resource selection window, re-execute steps 4 and 5. The value of X% is greater than 0. The value of X% can be configured or pre-configured by the network side device, for example, X% = 20%, which is not limited.

Step 6: When all of the following conditions are met, exclude the corresponding resources from _SA :

a) The received first-level SCI decoding is successful.

b) Performing RSRP measurement on the physical sidelink control channel (PSCCH) or the demodulation reference signal (DMRS) of the PSSCH included in the time-frequency resources reserved by the received first-level SCI for transmission of the physical sidelink shared channel (PSSCH), including the periodically reserved time-frequency resources for new transmission and/or retransmission of the PSSCH, and the non-periodically reserved time-frequency resources for new transmission and/or retransmission of the PSSCH, and the RSRP result thereof is higher than the RSRP threshold value determined in step 203.

c) The time-frequency resources reserved by the received first-level SCI are within the resource selection window, including the retransmission resources and periodically reserved resources indicated by the first-level SCI.

Step 7: If the remaining time-frequency resources after excluding the time-frequency resources from _SA are less than X% of the total time-frequency resources in the resource selection window, increase the RSRP threshold determined in step 3 (by 3 dB each time) and execute steps 4 to 7 again.

After step 1 to step 7, the terminal device can randomly select at least one time-frequency resource from _SA for sending data. Before sending data, the terminal device can also re-evaluate the selected time-frequency resource. The specific method of re-evaluating the resource is not limited in this application and will not be described in detail.

The above steps 1 to 7 are just examples. This application can also use other methods to reserve time and frequency resources, which will not be given one by one here.

After the terminal device selects the transmission resource in the resource pool using the self-selected resource mode, it can indicate the selected transmission resource through the sidelink control information (SCI). Among them, the SCI of the NR SL system is divided into the first-level SCI and the second-level SCI. The physical layer sidelink control channel (physical sidelink control channel, PSCCH) carries the first-level SCI, and the first-level SCI is used to schedule the second-level SCI and the physical layer sidelink shared channel (physical sidelink shared channel, PSSCH). Since SL is a distributed system, all UEs need to correctly decode the first-level SCI before they can decode the second-level SCI and PSSCH. PSCCH may exist in each subchannel in each time slot, that is, the time domain starting position of a PSCCH is the second symbol used for SL transmission in each time slot, the length is 2 or 3 symbols (determined by the resource pool configuration information), and the frequency domain position is the smallest physical resource block (PRB) index of each subchannel, the length is at least 10 PRBs (determined by the resource pool configuration information) but not more than the size of the subchannel.

Among them, the frequency resource assignment field and the time resource assignment field in the first-level SCI are used to indicate the frequency domain resources and time domain resources of PSSCH respectively, and the resource reservation period field is used to indicate the resources for periodic reservation transmission of PSSCH. The value of the resource reservation period field is configured by the network device, or pre-configured, or pre-defined. The format of the second-level SCI is indicated by the first-level SCI.

NR-V2X supports physical layer hybrid automatic repeat request (HARQ)-acknowledgement (ACK) feedback. That is, for a PSSCH transmission, if the transmitting user carries HARQ-ACK feedback enable information in the control information, the receiving user needs to feedback the ACK/negative acknowledgment (NACK) information of the response based on the PSSCH decoding result, where the ACK/NACK information is transmitted through the physical sidelink feedback channel (PSFCH).

PSFCH resources are periodic resources configured in the resource pool. The periodic configuration parameters are Can be 0, 1, 2, 4. Indicates that there is no PSFCH resource configuration in the resource pool, and PSFCH transmission is not enabled in the resource, that is, physical layer HARQ is not supported Feedback; e.g. Indicates that within a time window, There will be one PSFCH time slot in each time slot, or it can be understood that the PSFCH period is As shown in FIG3 , in the time slot where the frequency domain resource of the PSFCH is located, the PSFCH occupies the last two symbols before the gap (GAP). The PSFCH time slot may refer to a time slot including the PSFCH resource.

In the V2X transmission mode 2 scenario, different from network device scheduling, the terminal device needs to independently select PSSCH feedback resources based on its own listening results. Therefore, in order to simplify the PSFCH frequency domain resource selection process, NR-V2X configures PSFCH frequency domain resources for each PSSCH subchannel.

In FR2, devices may transmit signals via beams. The frequency ranges for FR1 and FR2 are defined as shown in Table 3.

Table 3

Beam management is an important technology proposed by the new radio (NR) system for frequency range (FR) 2. It refers to the process by which network equipment and terminal equipment obtain and maintain a set of beams for sending and receiving. It is a reference workflow for beamforming in multiple input multiple output (MIMO) systems. The frequency range of FR1 is 410MHz-7125MHz; the frequency range of FR2 is 24250MHz-52600MHz.

Taking downlink beam management as an example, beam management can be divided into three states according to the working state, as shown in Figure 4. The operations of each state are summarized as follows:

P-1: the terminal device measures a first transmission beam set of the network device (the beams in the first transmission beam set are wide beams), and selects a transmission beam of the network device and a reception beam of the terminal device;

P-2: Based on P-1, the terminal device measures the second transmit beam set (the beams in the second transmit beam set are thin beams) to improve the transmit beams of the network device;

P-3: The terminal device uses different receiving beams to measure the transmitting beam of the same network device to improve the receiving beam of the terminal device itself.

Based on the above three state operations, downlink beam management is performed, and its basic process is as follows:

The network device is configured with up to 64 beam directions, each of which corresponds to a synchronization signal block (SSB) and the time-frequency resources that the terminal device should use when reporting the beam. The network device sends SSBs to each beam direction in turn in a scanning manner, and each beam direction corresponds to an SSB; and the terminal device performs beam measurement to obtain the reference signal received power (RSRP) of the SSB. After that, the terminal device selects an SSB set by comparing the RSRP, and reports the SSB sequence number and the corresponding RSRP in the SSB set to the network device on the given time-frequency resources. The network device determines the sending beam based on this information. The uplink beam management also uses a similar process, but the reference signal used is different.

Further, in order to realize the transmission beam training in the P-2 working state, the network device will allocate K _S channel state information reference signal (CSI-RS) resources for K _S transmission beams, and then send these CSI-RS resources out by periodic beam scanning, and each beam direction corresponds to a CSI-RS resource. Among these CSI-RS resources, the maximum number of CSI-RS ports is 2, and other uncertain resource mapping information needs to be configured by the network device and indicated to the terminal device through RRC signaling. The network device only sends CSI-RS resources in a single beam direction at a certain moment. The terminal device performs beam measurement to obtain the CSI-RS reference signal received power RSRP, and obtains the CSI-RS reference signal resource indication (CSI-RS Resource Indicator, CRI). After measuring RSRP, the terminal device selects one or more RSRP values and the corresponding CRI by comparison and reports them to the network device on a given time-frequency resource, and the network device uses the report information to determine the transmission beam to be used.

Uplink beam management uses a similar process but uses a different reference signal.

In the sidelink, the above-mentioned beam management process can also be used between terminal devices to determine the transmission beams used to send signals to each other. In the beam management process, the terminal device that sends the reference signal can use the self-selected resource mode to reserve transmission resources. If a terminal device executes the above-mentioned beam management process with multiple terminal devices at the same time, since each of the multiple terminal devices independently reserves resources with each other in the resource pool, the locations of the resources reserved by the multiple terminal devices are relatively random, and the locations of the resources are relatively scattered, causing the receiving device to frequently switch between multiple resources and frequently switch the receiving reference signal receiving beam direction, thereby reducing the beam scanning delay. Moreover, in SL, if multiple terminal devices perform beam scanning with the same receiving device, the receiving device needs to frequently perform beam scanning on different resources in different time slots, resulting in increased beam scanning delay and low resource utilization.

As shown in FIG5 , a communication network architecture applicable to the embodiments of the present application is shown. As shown in FIG5 , the communication system may include multiple terminal devices (such as terminal device A and terminal device B), and optionally, network devices. In FIG5 (a), terminal device A and Terminal device B is within the signal coverage of the network device; in (b) of Figure 5, terminal device A is within the signal coverage of the network device, but terminal device B is outside the signal coverage of the network device. In (c) of Figure 5, terminal device A and terminal device B are both outside the signal coverage of the network device. Among them, in (a) of Figure 5 and (b) of Figure 5, terminal device A and terminal device B can communicate through the side link through the resources scheduled by the network device, and the resources can be authorized resources or authorized frequency bands; terminal device A and terminal device B can also select resources by themselves, that is, select resources for side link communication from the resource pool, and the resources are unauthorized resources or unauthorized frequency bands. In (c) of Figure 5, terminal device A and terminal device B are both outside the signal coverage of the network device, so they can only communicate through the side link by self-selection of resources.

In addition, the embodiments of the present application may also involve more terminal devices, and the specific number of terminal devices is not limited to this. The embodiments of the present application may also involve more network devices, or may not involve network devices, and this is not limited to this.

In various embodiments of the present application, the reference signal, for example, may be a SL reference signal, and the SL reference signal, for example, includes one or more of the following: SL CSI-RS, SL synchronization signal and physical broadcast channel (physical broadcast channel, PBCH) block (synchronization signal/PBCH block, SSB), or, SL DMRS. Or the SL reference signal may also include other reference signals. In various embodiments of the present application, the time domain unit is, for example, a subframe, a time slot, a mini-slot, or an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol group, and the sub-time domain unit is the next level time domain unit included in the time domain unit. For example, the time domain unit is a subframe, and the sub-time domain unit is a time slot, a mini-time slot, an OFDM symbol group, or an OFDM symbol; or, the time domain unit is a time slot, and the sub-time domain unit is a mini-time slot, an OFDM symbol group, or an OFDM symbol; or, the time domain unit is a mini-time slot, and the sub-time domain unit is an OFDM symbol group or an OFDM symbol; or, the time domain unit is an OFDM symbol group, and the sub-time domain unit is an OFDM symbol. Among them, an OFDM symbol group may include one or more OFDM symbols. For simplicity, OFDM symbols are referred to as symbols hereinafter.

In various embodiments of the present application, the frequency domain unit is, for example, a sub-channel, a resource block (RB) set, a physical resource block (PRB), a carrier or a sub-carrier, etc.

In the embodiments of the present application, the method executed by the network device may also be executed by a module (such as a chip) in the network device, or by a control subsystem including the network device function. The control subsystem including the network device function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, smart city, etc. The method executed by the terminal device may also be executed by a module (such as a chip or a modem) in the terminal device, or by a device including the terminal device function.

The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can appreciate that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

When the method provided by the present application is applied to the system in FIG. 5 , the method provided by the present application can be implemented by the terminal device in FIG. 5 or a module or chip in the terminal device. The method provided by the present application can be applied to communication in FR2

In the following process, the first terminal device, the second terminal device, the third terminal device and the like are used as the transmitting device, and the fourth terminal device is used as the receiving device for description. For example, the transmitting device and the receiving device perform a beam management process to determine the transmission beam used to send signals to each other. The receiving device can determine whether to adjust the resources in different time slots to one time slot based on the position of the resources reserved by each transmitting device in the time domain, so that multiple reference signals can be received simultaneously in the same time slot, which can reduce delay and improve efficiency, which will be described in detail below.

As shown in FIG6 , a flow chart of a communication method provided in an embodiment of the present application is provided, and the method includes:

Step 601: The first terminal device sends first indication information.

Correspondingly, the fourth terminal device receives the first indication information.

Step 602: The second terminal device sends second indication information.

Correspondingly, the fourth terminal device receives the second indication information.

The above is just an example, and the execution order of step 601 and step 602 is not limited.

This application is described by taking the first terminal device and the second terminal device as examples, and this application does not limit the number of terminal devices that send indication information to the fourth terminal device. For example, the fourth terminal device can receive indication information from multiple terminal devices, each indication information indicating a resource. The first terminal device and the second terminal device are two terminal devices among the multiple terminal devices, and the first indication information and the second indication information are two indication information among the multiple indication information.

Among them, the first indication information indicates the first resource, and the first resource is located in the first time slot. The second indication information indicates the second resource, and the second resource is located in the first time slot, and the first time slot and the second time slot are different. The time slot can also be replaced by other time domain units, such as subframes or mini time slots, etc., and the time slot is used as an example for description in this application. The first resource and the second resource are both used to transmit signals or data to the fourth terminal device, such as transmitting reference signals. It can be understood that the recipient of the signals or data carried in the first resource and the second resource is the fourth terminal device; accordingly, The fourth terminal device needs to receive signals or data through the first resource and the second resource respectively, for example, receive a reference signal.

The first terminal device can select the first resource in the resource pool. The specific process of the first terminal device selecting the first resource is not limited in this application. For example, the related description of the self-selected resource mode can be referred to above. Similarly, the second terminal device can select the second resource in the resource pool. The specific process is not repeated here.

For example, as shown in FIG7 , the first terminal device UE1 reserves a first resource R1 in the resource pool and indicates R1 through first indication information; the second terminal device UE2 reserves a second resource R2 in the resource pool and indicates R2 through second indication information.

In addition, the first indication information can indicate multiple resources at the same time, that is, the first terminal device can determine multiple resources and indicate the above multiple resources through the first indication information. The number of resources indicated by the first indication information is not limited. Similarly, the second indication information can indicate multiple resources at the same time, and the number of resources indicated by the second indication information is not limited. Step 601 and step 602 are described by taking the first indication information indicating the first resource and the second indication information indicating the second resource as examples, respectively, which does not mean that the first indication information only indicates one resource, and does not mean that the second indication information only indicates one resource.

In this application, how the first indication information indicates the first resource and how the second indication information indicates the second resource are not limited in this application. For example, taking the first indication information as an example, the first indication information can be located in the frequency domain allocation (Frequency resource assignment) field and the time domain allocation (Time resource assignment) field in the first-level SCI; wherein the frequency domain allocation field can indicate the frequency domain resource of the resource indicated by the first indication information, and the time domain allocation field can indicate the time domain resource of the resource indicated by the first indication information. The above is just an example, and the first indication information can also be implemented in other ways, which is not limited in this application.

In one implementation, the first terminal device may also send the first information, and the second terminal device may also send the second information. The first information indicates the source identifier (ID) and the destination identifier (Destination ID) corresponding to the first resource, and the second information indicates the source identifier and the destination identifier corresponding to the second resource. The source identifier corresponding to the first resource refers to the identifier of the transmitting device of the reference signal or data carried in the first resource, that is, the identifier of the first terminal device. The destination identifier corresponding to the first resource refers to the identifier of the receiving device of the reference signal or data carried in the first resource, that is, the identifier of the fourth terminal device. Similarly, the source identifier corresponding to the second resource refers to the identifier of the second terminal device, and the destination identifier corresponding to the second resource refers to the identifier of the fourth terminal device.

Correspondingly, the fourth terminal device can determine to receive the reference signal or data in the first resource based on the first information; and can determine to receive the reference signal or data in the second resource based on the second information.

In the present application, the first information may be scheduled by the first indication information, and the second information may be scheduled by the second indication information. For example, taking the first indication information and the first information as examples, the first indication information is located in the first-level SCI and is carried by the PSCCH. The first information is located in the second-level SCI and is carried by the PSSCH. The first-level SCI may schedule the second-level SCI, and the fourth terminal device receives the second-level SCI according to the first-level SCI.

In the present application, if the fourth terminal device needs to receive signals or data from the first terminal device and the second terminal device in the same time slot, it can reselect a resource to replace the first resource or the second resource. For example, in the beam management process, if the fourth terminal device determines to use the same receiving beam to receive reference signals in the first resource and the second resource, in order to reduce latency, the fourth terminal device can reselect a resource in the first time slot to replace the second resource, or the fourth terminal device can reselect a resource in the second time slot to replace the first resource. In this way, the fourth terminal device can simultaneously receive sidelink reference signals from the first terminal device and the second terminal device in one time slot.

The above are just examples. The present application does not limit why the fourth terminal device needs to reselect a resource to replace the first resource or the second resource, and under what conditions it reselects a resource to replace the first resource or the second resource.

The following description is made by taking the replacement of the first resource as an example. If the second resource is replaced, the specific process is similar to the process of replacing the first resource, and the specific process will not be repeated.

Step 603: The fourth terminal device sends third indication information to the first terminal device.

Correspondingly, the first terminal device receives the third indication information.

The third indication information is used to indicate that the first resource is adjusted to a third resource, and the third resource is located in the second time slot.

Adjusting the first resource to the third resource can also be understood as: replacing the first resource with the third resource, and the signal or data originally sent in the first resource is sent through the third resource instead of the first resource. Or it can be understood as that the fourth terminal device expects to receive the signal or data originally carried in the first resource in the third resource.

The frequency domain resource of the third resource is different from the frequency domain resource of the second resource, or the frequency domain resource of the third resource and the frequency domain resource of the second resource do not overlap in the frequency domain. The symbol included in the time domain resource of the third resource in the second time slot and the symbol included in the time domain resource of the second resource in the second time slot may be the same, different, or partially the same, and this application does not limit this.

For example, in combination with the previous FIG. 7 , as shown in FIG. 8 , the fourth terminal device UE4 indicates the third resource R3 through the third indication information, Thereby adjusting R1 to R3.

In the present application, the present application does not limit how the fourth terminal device determines the third resource. For example, a third resource can be selected in the resource pool using mode 2.

In one implementation, the third indication information includes at least one of the following:

Time domain information of the third resource; frequency domain information of the third resource; time domain information of the first resource; frequency domain information of the first resource.

Among them, the time domain information and frequency domain information of the first resource come from the first indication information. The first terminal device can determine that the resource that needs to be adjusted is the first resource based on the time domain information and/or frequency domain information of the first resource indicated in the third indication information.

The frequency domain information of the third resource may be a frequency domain resource indicator value (FRIV) of the third resource, and the frequency domain resource position of the third resource may be determined according to the FRIV. For example, the FRIV of the third resource may be determined according to the following formula:

in, represents the starting subchannel of the third resource, and L _subCH represents the number of subchannels occupied by the third resource. Used to indicate the number of sub-channels included in the resource pool. It can be configured by a network device or a terminal device, or predefined by a protocol.

The above is only an example, and the frequency domain information of the third resource may also be other information, which is not limited in this application.

There may be multiple implementations of the time domain information of the third resource, which are described below respectively.

In implementation method 1, the time domain information of the third resource indicates the time slot offset value between the third resource and the first physical resource, and the first physical resource is used to carry the first indication information or the third indication information. For example, the time slot offset value between the third resource and the first physical resource can be the index of the time slot where the third resource is located minus the index of the time slot where the first physical resource is located, or can also be the index of the time slot where the first physical resource is located minus the index of the time slot where the third resource is located. In the following description, the time slot offset value between the third resource and the first physical resource is the index of the time slot where the third resource is located minus the index of the time slot where the first physical resource is located. Other situations will not be repeated.

For example, as shown in Figure 9, the first physical resource carrying the first indication information is located in the time slot indexed as A, and R1 is the first resource. The third resource R3 is located in the time slot indexed as B, and the time slot offset value indicated by the time domain information of the third resource R3 can be B minus A.

In this implementation, the present application does not limit how the third indication information is implemented. For example, the third indication information can be carried by SCI, for example, a first field and a second field are newly added to SCI, the first field is used to carry the time domain information of the third resource (for example, the time slot offset value), and the second field is used to carry the frequency domain information of the third resource (for example, FRIV). The names of the first field and the second field are not limited, for example, the first field is called the time_offset field, and the second field is called the FRIV field, etc.

In a second implementation mode, the time domain information of the third resource includes information for indicating a time slot offset value between the third resource and the first resource, and information for indicating a positional relationship between the third resource and the first resource in the time domain.

In this implementation, the time domain information of the third resource may indicate the time slot offset value between the third resource and the first resource. At this time, the time domain information of the third resource may also indicate the position order of the third resource and the first resource in the time domain, that is, indicate the timing sequence of the third resource and the first resource. For example, the time slot offset value between the third resource and the first resource may be the index of the time slot where the third resource is located minus the index of the time slot where the first resource is located, or may be the index of the time slot where the first resource is located minus the index of the time slot where the third resource is located. The following description takes the time slot offset value between the third resource and the first resource, which is the index of the time slot where the third resource is located minus the index of the time slot where the first resource is located, as an example, and other situations will not be repeated.

For example, the time domain information of the third resource also includes a 1-bit flag. When the bit is 0, it indicates that the third resource is located in front of the first resource in the time domain; when the bit is 1, it indicates that the first resource is located in front of the third resource in the time domain.

For example, as shown in (a) of FIG10 , the first resource is located in the time slot indexed as C, and the third resource is located in the time slot indexed as B. Then the time slot offset value indicated by the time domain information of the third resource may be B minus C. At this time, flag=1 in the time domain information of the third resource.

As shown in (b) of Figure 10 , the first resource is located in the time slot indexed by C, and the third resource is located in the time slot indexed by D. Then the time slot offset value indicated by the time domain information of the third resource may be C minus D. At this time, flag=0 in the time domain information of the third resource.

FIG. 10 is only an example. When the time slot offset value in FIG. 10 is B minus C or C minus D, the default is to use the time slot index of the resource located at the back in the time domain minus the time slot index of the resource located at the front in the time domain. In practical applications, the time slot offset value may also be the time slot index of the resource located at the front in the time domain minus the time slot index of the resource located at the back in the time domain, for example, the time slot offset value is C minus B, as long as the method for determining the time slot offset value can be determined between two terminal devices by agreement or other means, so that the terminal device receiving the time slot offset value can determine the adjusted resource according to the time slot offset value.

In this implementation, the present application does not limit how the third indication information is implemented. For example, the third indication information can be carried by SCI, for example, a first field and a second field are newly added to SCI, the first field is used to carry the time domain information of the third resource (for example, the time slot offset value), and the second field is used to carry the frequency domain information of the third resource (for example, FRIV). The names of the first field and the second field are not There is no limitation and I will not elaborate on it here.

In addition, this implementation method can also be applicable to the scenario where the resource where the first indication information is located and the first resource are located in different resource pools, or can be applicable to the scenario where the first resource is located in a dedicated resource, where the dedicated resource can be located in a resource pool or in other resource pools, and this application is not limited.

For example, as shown in FIG11 , the first terminal device sends a first indication message in the resource pool, and the first resource R1 indicated by the first indication message is located in the dedicated resource. The resource pool and the dedicated resource can both be configured by the network device or preset. The third indication message sent by the fourth terminal device is located in the resource pool, and the third resource R2 is located in the dedicated resource.

As shown in (a) of Figure 11, the first resource is located in the time slot indexed by C, and the third resource is located in the time slot indexed by B. Then the time slot offset value indicated by the time domain information of the third resource may be B minus C. At this time, flag=1 in the time domain information of the third resource.

As shown in (b) of Figure 11 , the first resource is located in the time slot indexed as C, and the third resource is located in the time slot indexed as D. Then the time slot offset value indicated by the time domain information of the third resource may be C minus D. At this time, flag=0 in the time domain information of the third resource.

In implementation method three, the time domain information of the third resource indicates the frame index of the third resource and the slot index of the third resource, which can directly indicate the absolute time domain position of the third resource. The frame index may also refer to the system frame number (SFN). The frame index indicates the index of the frame where the third resource is located, and the slot index indicates the index of the first slot occupied by the third resource in the frame.

In this implementation, this application does not limit how the third indication information is implemented. For example, the third indication information can be carried by SCI, for example, a first field and a second field are newly added to SCI, the first field is used to carry the time domain information of the third resource (such as frame index and time slot index), and the second field is used to carry the frequency domain information of the third resource (such as FRIV). The names of the first field and the second field are not limited and are not repeated here. For example, the first field can be called the SFN field, and the first field can include a direct frame number (directFrameNumber) and a time slot index (slotIndex).

For example, directFrameNumber includes 10 bits, and the number of bits included in slotIndex can be related to the subcarrier spacing (SCS) of the dedicated resource, for example, SCS = 15kHz, slotIndex includes 4 bits; SCS = 60kHZ, slotIndex includes 7 bits. On this basis, the remaining time slots of the third resource are indicated by the time offset field in the SCI. For example, as shown in Figure 12, the first terminal device sends the first indication information in the resource pool, and the first resource R1 indicated by the first indication information is located in the dedicated resource; the fourth terminal device sends the third indication information in the resource pool, and the third indication information indicates that the first resource R1 in the dedicated resource is adjusted to the third resource R3 in the dedicated resource, wherein the third resource is located in the 7th time slot of the 3rd frame. At this time, the value of directFrameNumber in the SFN field is 3, and the value of slotIndex is 7, indicating that the third resource is located in the 7th time slot of the 3rd frame.

Optionally, the first terminal device sends sixth indication information or seventh indication information, the sixth indication information indicates acceptance of adjusting the first resource to the third resource, and the seventh indication information indicates refusal to adjust the first resource to the third resource.

Correspondingly, the fourth terminal device receives the sixth indication information or the seventh indication information.

In another implementation, the sixth indication information or the seventh indication information can be replaced by the eighth indication information. The eighth indication information is the first value, indicating acceptance of adjusting the first resource to the third resource; the eighth indication information is the second value, indicating refusal to adjust the first resource to the third resource. For example, the first value is 1, the second value is 0, etc., and this application is not limited to this.

If the first terminal device accepts to adjust the first resource to the third resource, then the signal or data originally transmitted in the first resource will be transmitted through the third resource, and the first resource may no longer be used, or other data may be transmitted through the first resource; if the first terminal device refuses to adjust the first resource to the third resource, then the first terminal device continues to transmit the signal or data in the first resource.

In the present application, the sixth indication information or the seventh indication information may be carried by the PSFCH. For example, as shown in FIG13 , the third indication information is transmitted by the SCI or MAC control element (CE), and the PSFCH resource corresponding to the SCI or MAC CE is located in time slot n, that is, the PSFCH resource in the time slot pointed to by the arrow in the figure. The sixth indication information or the seventh indication information corresponding to the third indication information may be carried on the corresponding PSFCH resource. For example, the value of the sixth indication information is 1, and the value of the seventh indication information is 0. If the first terminal device accepts to adjust the first resource to the third resource, 1 is transmitted in the PSFCH resource corresponding to the SCI or MAC CE; if the first terminal device refuses to adjust the first resource to the third resource, 0 is transmitted in the PSFCH resource corresponding to the SCI or MAC CE. The above are just examples, and the sixth indication information and the seventh indication information may also have other values, which will not be repeated here.

Assuming that the first terminal device sends the sixth indication information or the eighth indication information, and the eighth indication information is the first value, that is, the first terminal device accepts the adjustment of the first resource to the third resource, the following process may also be included.

Step 604: The first terminal device sends a first reference signal via a third resource.

Correspondingly, the fourth terminal device receives the first reference signal through the third resource.

Step 605: The second terminal device sends a second reference signal via a second resource.

Correspondingly, the fourth terminal device receives the second reference signal through the second resource.

The above is just an example, and the execution order of step 604 and step 605 is not limited.

In step 604 and step 605, the third resource carries the first reference signal and the second resource carries the second reference signal. The third resource and/or the second resource may also carry other information, such as data or signaling, which is not limited in the present application.

If the present application is applied in FR2, that is, the third resource and the second resource are resources in FR2, the fourth terminal device can also use the same receiving beam to receive the first reference signal and the second reference signal.

The fourth terminal device may also measure the first reference signal to obtain a first measurement result, for example, the first measurement result includes a first RSRP of the first reference signal; the fourth terminal device may also measure the second reference signal to obtain a second measurement result, for example, the second measurement result includes a second RSRP of the second reference signal. The fourth terminal device may send the first measurement result to the first terminal device and the second measurement result to the second terminal device, respectively, and the specific process will not be repeated.

Through the method provided by the present application, when the fourth terminal device determines to receive reference signals in different resources in different time slots, the resources in different time slots can be adjusted to the same time slot, so that the fourth terminal device can receive reference signals in different resources in the same time slot, which can improve the reception efficiency and reduce the transmission delay of the reference signal. In particular, in the beam management process, the first terminal device reserves to use the first transmission beam in the first resource to send the first reference signal, and the second terminal device reserves to use the second transmission beam in the second resource to send the second reference signal. If the fourth terminal device uses the first receiving beam to receive the first reference signal and the second reference signal, the fourth terminal device can adjust the first resource to the third resource in the second time slot, so that the fourth terminal device can receive and determine the first reference signal and the second reference signal in the same time slot, thereby avoiding frequent beam switching. In this way, the fourth terminal device can use the same receiving beam in the second time slot to receive multiple reference signals in multiple resources, improve beam scanning efficiency, and reduce beam scanning delay.

In the previous description, two terminal devices (a first terminal device and a second terminal device) respectively send reference signals to a fourth terminal device through a resource as an example. For example, in the beam management process, a terminal device can reserve multiple resources and send reference signals through each of the multiple resources, and each terminal device uses a different transmission beam to send reference signals in each of the multiple resources. In this case, if multiple terminal devices perform a beam management process with a fourth terminal device at the same time, the fourth terminal device may adjust multiple resources at the same time, that is, the fourth terminal device can indicate multiple adjusted resources and multiple adjusted resources through the third indication information.

The following description is made by taking the third indication information indicating two adjusted resources and the adjusted resources as an example, and other situations can be deduced accordingly and will not be described in detail.

In one implementation, it is assumed that the first terminal device also sends fourth indication information, the fourth indication information indicates a fourth resource, and the fourth resource is located in the third time slot. The fourth indication information can be the same as the first indication information, that is, the first indication information indicates both the first resource and the fourth resource.

The fourth terminal device may also receive fifth indication information from the third terminal device, the fifth indication information indicating a fifth resource, and the fifth resource is located in the fourth time slot. Here, the fifth indication information is sent by the third terminal device as an example for description. The fifth indication information may also be sent by the second terminal device. This application does not limit the terminal device sending the fifth indication information. For other contents of the fourth indication information and the fifth indication information, reference may be made to the description of the first indication information, which will not be repeated here.

The fourth time slot is different from the fifth time slot. The fourth resource and the fifth resource are both used to transmit signals or data to the fourth terminal device, such as transmitting reference signals. It can be understood that the receiver of the signals or data carried in the fourth resource and the fifth resource is the fourth terminal device; accordingly, the fourth terminal device needs to receive signals or data, such as receiving reference signals, through the fourth resource and the fifth resource respectively.

In this implementation, the third indication information further indicates that the fourth resource is adjusted to a sixth resource; the sixth resource is located in the fourth time slot. The sixth resource is determined by the fourth terminal device, and the specific determination process is not limited in this application and will not be repeated here.

Among them, adjusting the fourth resource to the sixth resource can also be understood as: replacing the fourth resource with the sixth resource, and the signal or data originally sent in the fourth resource is sent through the sixth resource instead of the fourth resource. Or it can be understood that the fourth terminal device expects to receive the signal or data originally carried in the fourth resource in the sixth resource.

In one implementation, the first terminal device may further send third information, and the third terminal device may further send fourth information. The third information indicates the source identifier and destination identifier corresponding to the fourth resource, and the fourth information indicates the source identifier and destination identifier corresponding to the fifth resource. The source identifier corresponding to the fourth resource may be the identifier of the second terminal device. The destination identifier corresponding to the fourth resource may be the identifier of the fourth terminal device. Similarly, the source identifier corresponding to the fifth resource may refer to the identifier of the third terminal device, and the destination identifier corresponding to the fifth resource may refer to the identifier of the fourth terminal device.

Correspondingly, the fourth terminal device can determine to receive a reference signal or data in the fourth resource based on the third information; and can determine to receive a reference signal or data in the fifth resource based on the fourth information.

In this application, the third information can be scheduled by the fourth indication information, and the fourth information can be scheduled by the fifth indication information. The description in the first indication information and the first information will not be repeated here.

In the present application, the frequency domain resources of the sixth resource are different from the frequency domain resources of the fifth resource, or the frequency domain resources of the sixth resource and the frequency domain resources of the fifth resource do not overlap in the frequency domain. The symbol included in the time domain resource of the sixth resource in the fourth time slot and the symbol included in the time domain resource of the fifth resource in the fourth time slot may be the same, different, or partially the same, and the present application does not limit this.

For example, as shown in FIG14 , the first terminal device indicates the first resource R1 through the first indication information, and indicates the fourth resource R4 through the fourth indication information; the second terminal device UE2 indicates the second resource R2 through the second indication information; and the third terminal device UE3 indicates the fifth resource R5 through the fifth indication information. This is just an example, and the first terminal device or the second terminal device or the third terminal device may also indicate other resources. Alternatively, there may be other terminal devices indicating resources to the fourth terminal device.

Assuming that R1, R2, R4 and R5 are all resources for sending reference signals to the fourth terminal device, the fourth terminal device determines to use the first receiving beam, the first receiving beam, the second receiving beam, and the second receiving beam to receive the reference signal respectively. Since the fourth terminal device uses the same receiving beam to receive reference signals in R1 and R2, and uses the same receiving beam to receive reference signals in R4 and R5, the fourth terminal device can adjust R1 to resource R3, R3 and R2 are in the same time slot; adjust R4 to resource R6, R6 and R5 are in the same time slot. In this way, the fourth terminal device can receive reference signals in multiple resources through the same receiving beam in the same time slot, reduce the frequency of beam switching, and improve efficiency.

The present application may also be applicable to a scenario where the indication information and the resource indicated by the indication information are located in different resource pools, or may be applicable to a scenario where the first resource to the sixth resource are located in a dedicated resource. For example, as shown in FIG15 , the resources carrying the first indication information to the fifth indication information are all located in a resource pool. The first resource R1, the second resource R2, the third resource R3, the fourth resource R4, the fifth resource R5, and the sixth resource R6 are all located in a dedicated resource.

In the present application, if the third indication information indicates that the first resource is adjusted to the third resource, and the fourth resource is adjusted to the sixth resource, then the third indication information may include at least one of the following:

time domain information of the third resource; frequency domain information of the third resource; time domain information of the first resource; frequency domain information of the first resource;

Time domain information of the fourth resource; frequency domain information of the fourth resource; time domain information of the sixth resource; frequency domain information of the sixth resource.

The time domain information and frequency domain information of the fourth resource may come from the fourth indication information. For how the third indication information indicates the time domain information and frequency domain information of the sixth resource, reference may be made to the description of how the third indication information indicates the time domain information and frequency domain information of the third resource, which will not be repeated here.

Similarly, the first terminal device can indicate through the indication information whether to accept the adjustment of the fourth resource to the sixth resource, or to refuse the adjustment of the fourth resource to the sixth resource. For details, please refer to the previous description, which will not be repeated here.

In the present application, when the third indication information indicates multiple adjusted resources and multiple adjusted resources, the third indication information can explicitly indicate the adjusted resources corresponding to each of the multiple adjusted resources, so that the first terminal device can determine which resource is adjusted and the adjusted resource.

For example, in combination with the previous FIG. 14, as shown in FIG. 16, the third indication information includes information 1, and information 1 indicates that R1 corresponds to R3, and R4 corresponds to R6. In this way, the first terminal device can determine that R1 is adjusted to R3, and R4 is adjusted to R6. In addition, the third indication information may also include other information, such as time domain information of R1, time domain information of R4, time domain information of R3, frequency domain information of R3, time domain information of R6, and frequency domain information of R6.

In another implementation, the third indication information may implicitly indicate the adjusted resource corresponding to each of the multiple adjusted resources. Taking the third indication information indicating that the first resource is adjusted to the third resource, and the fourth resource is adjusted to the sixth resource as an example, when the third indication information includes the time domain information of the third resource and the time domain information of the sixth resource, the position order of the time domain information of the third resource and the time domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain;

When the third indication information includes frequency domain information of the third resource and frequency domain information of the sixth resource, the position order of the frequency domain information of the third resource and the frequency domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain.

For example, in combination with the previous FIG. 14, as shown in FIG. 17, since R3 is located before R6 in the time domain, the time domain information of R3 included in the third indication information is located before the time domain information of R6, and the frequency domain information of R3 included in the third indication information is located before the frequency domain information of R6. If R3 is located after R6 in the time domain, then the time domain information of R3 included in the third indication information is located after the time domain information of R6, and the frequency domain information of R3 included in the third indication information is located after the frequency domain information of R6.

It is understandable that, in order to implement the functions in the above embodiments, the terminal device or network device includes a hardware structure and/or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the above method The functions of the terminal device or network device in the embodiment can therefore also achieve the beneficial effects possessed by the above method embodiment.

As shown in Fig. 18, the communication device 1800 includes a processing unit 1810 and a communication unit 1820. The communication device 1800 is used to implement the functions of the terminal device or the network device in each of the above-mentioned method embodiments.

When the communication device 1800 is used to implement the function of the first terminal device:

A processing unit, configured to receive, through a communication unit, first indication information from a first terminal device, and receive second indication information from a second terminal device; the first indication information indicates a first resource, the second indication information indicates a second resource, the first resource is located in a first time slot, and the second resource is located in a second time slot;

The processing unit is configured to send third indication information to the first terminal device through the communication unit, where the third indication information is used to indicate that the first resource is adjusted to a third resource, and the third resource is located in the second time slot;

The processing unit is configured to receive, through the communication unit, a first reference signal from the first terminal device in the third resource, and receive a second reference signal from the second terminal device in the second resource.

In an implementation manner, before sending the third indication information to the first terminal device, the processing unit is further configured to:

Determine to use the same receiving beam to receive a reference signal in the first resource and the second resource.

In one implementation, the third indication information includes at least one of the following: time domain information of the third resource; frequency domain information of the third resource; time domain information of the first resource; and frequency domain information of the first resource.

In one implementation, the time domain information of the third resource indicates a time slot offset value between the third resource and the first resource;

Alternatively, the time domain information of the third resource indicates a time slot offset value between the third resource and a first physical resource, and the first physical resource is used to carry the first indication information;

Alternatively, the time domain information of the third resource indicates a frame index of the third resource and a time slot index of the third resource.

In one implementation, the communication unit is further configured to:

Receive fourth indication information from the first terminal device, and receive fifth indication information from the third terminal device; the fourth indication information indicates a fourth resource, the fifth indication information indicates a fifth resource, the fourth resource is located in a third time slot, and the fifth resource is located in a fourth time slot; wherein the third indication information also indicates adjusting the fourth resource to a sixth resource; the sixth resource is located in the fourth time slot.

In one implementation, the third indication information further includes at least one of the following:

The time domain information of the fourth resource; the frequency domain information of the fourth resource; the time domain information of the sixth resource; the frequency domain information of the sixth resource.

When the communication device 1800 is used to implement the function of the first terminal device:

A processing unit, configured to send first indication information through a communication unit; the first indication information indicates a first resource, and the first resource is located in a first time slot;

The processing unit is configured to receive third indication information from a fourth terminal device through the communication unit, where the third indication information indicates that the first resource is adjusted to a third resource, and the third resource is located in a second time slot;

The processing unit is configured to send a first reference signal on the third resource through the communication unit.

In one implementation, the third indication information includes at least one of the following:

The time domain information of the third resource; the frequency domain information of the third resource; the time domain information of the first resource; the frequency domain information of the first resource.

In one implementation, the time domain information of the third resource indicates a time slot offset value between the third resource and the first resource;

Alternatively, the time domain information of the third resource indicates a time slot offset value between the third resource and a first physical resource, and the first physical resource is used to carry the first indication information;

Alternatively, the time domain information of the third resource indicates a frame index of the third resource and a time slot index of the third resource.

In one implementation, when the time domain information of the third resource indicates a time slot offset value between the third resource and the first resource, the time domain information of the third resource also indicates a position order of the third resource and the first resource in the time domain.

In one implementation, the device further includes:

Sending fourth indication information; the fourth indication information indicates a fourth resource, and the fourth resource is located in a third time slot;

The third indication information further indicates that the fourth resource is adjusted to a sixth resource; and the sixth resource is located in the fourth time slot.

A more detailed description of the processing unit 1810 and the communication unit 1820 can be obtained by directly referring to the relevant descriptions in the above-mentioned method embodiments, and will not be repeated here.

It should be understood that the division of the units in the above device is only a division of logical functions, and in actual implementation, all or part of them can be integrated into one In terms of physical entity, they can also be physically separated. And the units in the device can all be implemented in the form of software calling through processing elements; they can also be all implemented in the form of hardware; some units can also be implemented in the form of software calling through processing elements, and some units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or it can be integrated in a certain chip of the device. In addition, it can also be stored in a memory in the form of a program, and called by a certain processing element of the device to execute the function of the unit. In addition, all or part of these units can be integrated together, or they can be implemented independently. The processing element here can also be a processor, which can be an integrated circuit with signal processing capabilities. In the implementation process, each operation of the above method or the above units can be implemented by the integrated logic circuit of the hardware in the processor element or in the form of software calling through the processing element.

In one example, the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASIC), or one or more digital singnal processors (DSP), or one or more field programmable gate arrays (FPGA), or a combination of at least two of these integrated circuit forms. For another example, when the unit in the device can be implemented in the form of a processing element scheduler, the processing element can be a processor, such as a general-purpose central processing unit (CPU), or other processors that can call programs. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

The above unit for receiving is an interface circuit of the device, which is used to receive signals from other devices. For example, when the device is implemented in the form of a chip, the receiving unit is an interface circuit of the chip used to receive signals from other chips or devices. The above unit for sending is an interface circuit of the device, which is used to send signals to other devices. For example, when the device is implemented in the form of a chip, the sending unit is an interface circuit of the chip used to send signals to other chips or devices.

As another possible product form, the terminal device or network device of the embodiment of the present application can be implemented by a general bus architecture. For ease of explanation, refer to Figure 19, which is a structural diagram of a communication device 1900 provided in an embodiment of the present application, and the communication device 1900 includes a processor 1901 and a transceiver 1902. The communication device 1900 can be a network device, or a chip or chip system therein; or, the communication device 1900 can be a terminal device, or a chip or module therein. Figure 19 only shows the main components of the communication device 1900. In addition to the processor 1901 and the transceiver 1902, the communication device 1900 may further include a memory 1903, and an input and output device (not shown in the figure).

Optionally, the processor 1901 is mainly used to process the communication protocol and communication data, and to control the entire communication device, execute the software program, and process the data of the software program. The memory 1903 is mainly used to store the software program and data. The transceiver 1902 may include a radio frequency circuit and an antenna. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.

Optionally, the processor 1901, the transceiver 1902, and the memory 1903 may be connected via a communication bus.

When the communication device is turned on, the processor 1901 can read the software program in the memory 1903, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor 1901 performs baseband processing on the data to be sent, and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 1901. The processor 1901 converts the baseband signal into data and processes the data.

In another implementation, the RF circuit and antenna may be arranged independently of the processor performing baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be arranged independently of the communication device in a remote manner.

In some embodiments, in terms of hardware implementation, those skilled in the art may conceive that the above-mentioned communication device 1800 may take the form of a communication device 1900 shown in FIG. 19 .

As an example, the function/implementation process of the processing unit 1810 in FIG18 can be implemented by the processor 1901 in the communication device 1900 shown in FIG19 calling the computer execution instructions stored in the memory 1903. The function/implementation process of the communication unit 1820 in FIG18 can be implemented by the transceiver 1902 in the communication device 1900 shown in FIG19.

As another possible product form, the terminal device or network device in the present application may adopt the composition structure shown in Figure 20, or include the components shown in Figure 20. Figure 20 is a composition diagram of a communication device 2000 provided in the present application.

As shown in FIG20 , the communication device 2000 includes at least one processor 2001. Optionally, the communication device further includes a communication interface 2002.

When the program instructions involved are executed in the at least one processor 2001, the communication device 2000 can implement the method provided by any of the aforementioned embodiments and any possible designs thereof. Alternatively, the processor 2001 is used to implement the method provided by any of the aforementioned embodiments and any possible designs thereof through a logic circuit or execution code instructions.

The communication interface 2002 may be used to receive program instructions and transmit them to the processor, or the communication interface 2002 may be used to communicate with the device. 2000 communicates and interacts with other communication devices, such as interactive control signaling and/or business data, etc. Exemplarily, the communication interface 2002 can be used to receive signals from other devices outside the communication device 2000 and transmit them to the processor 2001 or send signals from the processor 2001 to other communication devices outside the communication device 2000.

Optionally, the communication interface 2002 may be a code and/or data read/write interface circuit, or the communication interface 2002 may be a signal transmission interface circuit between a communication processor and a transceiver, or may be a pin of a chip.

Optionally, the communication device 2000 may further include at least one memory 2003, which may be used to store required program instructions and/or data. It should be noted that the memory 2003 may exist independently of the processor 2001, or may be integrated with the processor 2001. The memory 2003 may be located inside the communication device 2000, or may be located outside the communication device 2000, without limitation.

Optionally, the communication device 2000 may further include a power supply circuit 2004, which may be used to supply power to the processor 2001. The power supply circuit 2004 may be located in the same chip as the processor 2001, or in another chip other than the chip where the processor 2001 is located.

Optionally, the communication device 2000 may further include a bus, and various parts of the communication device 2000 may be interconnected via the bus.

In some embodiments, in terms of hardware implementation, those skilled in the art may conceive that the communication device 1800 shown in FIG. 18 may take the form of the communication device 2000 shown in FIG. 20 .

As an example, the function/implementation process of the processing unit 1810 in FIG18 can be implemented by the processor 2001 in the communication device 2000 shown in FIG20 calling the computer execution instructions stored in the memory 2003. The function/implementation process of the communication unit 1820 in FIG18 can be implemented by the communication interface 2002 in the communication device 2000 shown in FIG20.

It should be noted that the structure shown in FIG. 20 does not constitute a specific limitation on the terminal device or network device. For example, in other embodiments of the present application, the terminal device or network device may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

When the above communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiment. The terminal chip receives information from other modules in the terminal (such as a radio frequency module or an antenna), and the information is sent by the base station to the terminal; or the terminal chip sends information to other modules in the terminal (such as a radio frequency module or an antenna), and the information is sent by the terminal to the base station.

When the above-mentioned communication device is a module applied to a base station, the base station module implements the function of the base station in the above-mentioned method embodiment. The base station module receives information from other modules in the base station (such as a radio frequency module or an antenna), and the information is sent by the terminal to the base station; or, the base station module sends information to other modules in the base station (such as a radio frequency module or an antenna), and the information is sent by the base station to the terminal. The base station module here can be a baseband chip of a base station, or it can be a DU or other modules. The DU here can be a DU under an open radio access network (O-RAN) architecture.

It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

The method steps in the embodiments of the present application can be implemented by hardware, or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an electrically erasable programmable read-only memory, a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. Of course, the processor and the storage medium can also be present in a base station or a terminal as discrete components.

In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instructions may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wire or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a server, data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid state drive. The computer readable storage medium may be a volatile or non-volatile storage medium, or may include both volatile and non-volatile types of storage media.

In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and/or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) that contain computer-usable program code.

The present application is described with reference to the flowchart and/or block diagram of the method, device (system), and computer program product according to the present application. It should be understood that each process and/or box in the flowchart and/or block diagram, as well as the combination of the process and/or box in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the function specified in one process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (33)

A communication method, characterized by comprising: Receive first indication information from a first terminal device, and receive second indication information from a second terminal device; the first indication information indicates a first resource, the second indication information indicates a second resource, the first resource is located in a first time slot, and the second resource is located in a second time slot; Sending third indication information to the first terminal device, where the third indication information is used to indicate that the first resource is adjusted to a third resource, where the third resource is located in the second time slot; A first reference signal is received from the first terminal device in the third resource, and a second reference signal is received from the second terminal device in the second resource. The method according to claim 1, characterized in that before sending the third indication information to the first terminal device, the method further comprises: Determine to use the same receiving beam to receive a reference signal in the first resource and the second resource. The method according to claim 1, wherein the third indication information includes at least one of the following: The time domain information of the third resource; the frequency domain information of the third resource; the time domain information of the first resource; the frequency domain information of the first resource. The method according to claim 3, characterized in that the time domain information of the third resource indicates a time slot offset value between the third resource and the first resource; Alternatively, the time domain information of the third resource indicates a time slot offset value between the third resource and a first physical resource, and the first physical resource is used to carry the first indication information; Alternatively, the time domain information of the third resource indicates a frame index of the third resource and a time slot index of the third resource. The method according to claim 4 is characterized in that, when the time domain information of the third resource indicates the time slot offset value between the third resource and the first resource, the time domain information of the third resource also indicates the position sequence of the third resource and the first resource in the time domain. The method according to any one of claims 1 to 5, characterized in that the method further comprises: Receive fourth indication information from the first terminal device, and receive fifth indication information from the third terminal device; the fourth indication information indicates a fourth resource, the fifth indication information indicates a fifth resource, the fourth resource is located in a third time slot, and the fifth resource is located in a fourth time slot; The third indication information further indicates that the fourth resource is adjusted to a sixth resource; and the sixth resource is located in the fourth time slot. The method according to claim 6, characterized in that the third indication information further includes at least one of the following: The time domain information of the fourth resource; the frequency domain information of the fourth resource; the time domain information of the sixth resource; the frequency domain information of the sixth resource. The method according to any one of claims 6 to 7, characterized in that when the third indication information includes the time domain information of the third resource and the time domain information of the sixth resource, the position order of the time domain information of the third resource and the time domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain; And/or, when the third indication information includes frequency domain information of the third resource and frequency domain information of the sixth resource, the position order of the frequency domain information of the third resource and the frequency domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain. The method according to any one of claims 1 to 8, characterized in that the method further comprises: Receive sixth indication information or seventh indication information from the first terminal device, the sixth indication information indicating acceptance of adjusting the first resource to the third resource, and the seventh indication information indicating refusal to adjust the first resource to the third resource. A communication method, characterized by comprising: Sending first indication information; the first indication information indicates a first resource, and the first resource is located in a first time slot; receiving third indication information from a fourth terminal device, wherein the third indication information indicates that the first resource is adjusted to a third resource, and the third resource is located in a second time slot; A first reference signal is sent on the third resource. The method according to claim 10, characterized in that the method further comprises: The sixth indication information or the seventh indication information is sent to the fourth terminal device, the sixth indication information indicates acceptance of adjusting the first resource to the third resource, and the seventh indication information indicates rejection of adjusting the first resource to the third resource. The method according to claim 10 or 11, characterized in that the third indication information includes at least one of the following: The time domain information of the third resource; the frequency domain information of the third resource; the time domain information of the first resource; the frequency domain information of the first resource. The method according to claim 12, characterized in that the time domain information of the third resource indicates a time slot offset value between the third resource and the first resource; Alternatively, the time domain information of the third resource indicates a time slot offset value between the third resource and a first physical resource, and the first physical resource is used to carry the first indication information; Alternatively, the time domain information of the third resource indicates a frame index of the third resource and a time slot index of the third resource. The method according to claim 13 is characterized in that, when the time domain information of the third resource indicates the time slot offset value between the third resource and the first resource, the time domain information of the third resource also indicates the position order of the third resource and the first resource in the time domain. The method according to any one of claims 9 to 14, characterized in that the method further comprises: Sending fourth indication information; the fourth indication information indicates a fourth resource, and the fourth resource is located in a third time slot; The third indication information further indicates that the fourth resource is adjusted to a sixth resource; and the sixth resource is located in the fourth time slot. The method according to claim 15, characterized in that the third indication information further includes at least one of the following: The time domain information of the fourth resource; the frequency domain information of the fourth resource; the time domain information of the sixth resource; the frequency domain information of the sixth resource. The method according to any one of claims 15 to 16, characterized in that when the third indication information includes the time domain information of the third resource and the time domain information of the sixth resource, the position order of the time domain information of the third resource and the time domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain; And/or, when the third indication information includes frequency domain information of the third resource and frequency domain information of the sixth resource, the position order of the frequency domain information of the third resource and the frequency domain information of the sixth resource in the third indication information is the same as the position order of the first resource and the fourth resource in the time domain. A communication device, comprising: A processing unit, configured to receive, through a communication unit, first indication information from a first terminal device, and receive second indication information from a second terminal device; the first indication information indicates a first resource, the second indication information indicates a second resource, the first resource is located in a first time slot, and the second resource is located in a second time slot; The processing unit is configured to send third indication information to the first terminal device through the communication unit, where the third indication information is used to indicate that the first resource is adjusted to a third resource, and the third resource is located in the second time slot; The processing unit is configured to receive, through the communication unit, a first reference signal from the first terminal device in the third resource, and receive a second reference signal from the second terminal device in the second resource. The apparatus according to claim 18, wherein before sending the third indication information to the first terminal device, the processing unit is further configured to: Determine to use the same receiving beam to receive a reference signal in the first resource and the second resource. The device according to claim 18, wherein the third indication information includes at least one of the following: The time domain information of the third resource; the frequency domain information of the third resource; the time domain information of the first resource; the frequency domain information of the first resource. The device according to claim 20, characterized in that the time domain information of the third resource indicates a time slot offset value between the third resource and the first resource; Alternatively, the time domain information of the third resource indicates a time slot offset value between the third resource and a first physical resource, and the first physical resource is used to carry the first indication information; Alternatively, the time domain information of the third resource indicates a frame index of the third resource and a time slot index of the third resource. The device according to any one of claims 18 to 21, characterized in that the communication unit is further used for: Receive fourth indication information from the first terminal device, and receive fifth indication information from the third terminal device; the fourth indication information indicates a fourth resource, the fifth indication information indicates a fifth resource, the fourth resource is located in a third time slot, and the fifth resource is located in a fourth time slot; The third indication information further indicates that the fourth resource is adjusted to a sixth resource; and the sixth resource is located in the fourth time slot. The device according to claim 22, characterized in that the third indication information further includes at least one of the following: The time domain information of the fourth resource; the frequency domain information of the fourth resource; the time domain information of the sixth resource; the frequency domain information of the sixth resource. A communication device, comprising: A processing unit, configured to send first indication information through a communication unit; the first indication information indicates a first resource, and the first resource is located in a first time slot; The processing unit is configured to receive third indication information from a fourth terminal device through the communication unit, where the third indication information indicates that the first resource is adjusted to a third resource, and the third resource is located in a second time slot; The processing unit is configured to send a first reference signal on the third resource through the communication unit. The device according to claim 24, wherein the third indication information includes at least one of the following: The time domain information of the third resource; the frequency domain information of the third resource; the time domain information of the first resource; the frequency domain information of the first resource. The device according to claim 25, characterized in that the time domain information of the third resource indicates a time slot offset value between the third resource and the first resource; Alternatively, the time domain information of the third resource indicates a time slot offset value between the third resource and a first physical resource, and the first physical resource is used to carry the first indication information; Alternatively, the time domain information of the third resource indicates a frame index of the third resource and a time slot index of the third resource. The device according to claim 26 is characterized in that, when the time domain information of the third resource indicates the time slot offset value between the third resource and the first resource, the time domain information of the third resource also indicates the position order of the third resource and the first resource in the time domain. The device according to any one of claims 24 to 27, characterized in that the communication unit is further used for: Sending fourth indication information; the fourth indication information indicates a fourth resource, and the fourth resource is located in a third time slot; The third indication information further indicates that the fourth resource is adjusted to a sixth resource; and the sixth resource is located in the fourth time slot. A communication system, characterized by comprising: a first terminal device and a fourth terminal device; The fourth terminal device is used to implement the method according to any one of claims 1 to 9; The first terminal device is used to implement the method according to any one of claims 10 to 17. A communication device, comprising a processor and a memory; The processor is configured to execute the computer program or instructions stored in the memory, so that the communication device implements the method according to any one of claims 1 to 17. A computer-readable storage medium, characterized in that a computer program or instruction is stored therein, and when the computer program or instruction is executed on a computer, the computer implements the method according to any one of claims 1 to 17. A chip, characterized in that it includes a processor, wherein the processor is coupled to a memory and is used to execute a computer program or instruction stored in the memory, so that the chip implements the method as described in any one of claims 1 to 17. A computer program product, characterized in that when a computer reads and executes the computer program product, the method according to any one of claims 1 to 17 is executed.